Miguel David

Engineering Manager building reliable systems and high-performing teams

About

I build reliable systems and grow engineering teams. I've done this from Porto to London to Brussels, 7 countries total, usually while figuring out a new language and where to get decent tea. I live in Brussels now with my wife, two small humans, and a dog named after the real hero of Middle-earth.

Work History

Engineering Manager, SRE & Forecast Teams
Jan 2023 – Sep 2025

Led two globally distributed teams (8 engineers) through Harvest's acquisition. Drove a 3-year zero-downtime migration to Vitess, cut $240K/year in infrastructure costs, and maintained 99.95% uptime across all services. Stabilized the Forecast product, reducing churn from ~4% to ~1.5%.

Site Reliability Engineer
May 2019 – Jan 2023

Core contributor to a full infrastructure migration from bare metal to GKE across 5 production apps. Built KEDA-based autoscaling that cut compute costs by 60%, designed HA Redis/Memcached architectures, and co-built the SLO monitoring framework that gave us visibility over 99.95% uptime targets.

Co-organizer
Oct 2016 – Feb 2024

Co-organized monthly meetups for the Porto DevOps community, bringing together practitioners to share knowledge on infrastructure, automation, and engineering culture.

Linux, Cloud and Automation Engineer
Jan 2016 – May 2019

Designed infrastructure and led cloud migrations for startups across travel, news, fashion, and supply chain. Key clients included Nezasa, WikiTribune (Jimmy Wales' news platform), and Chic by Choice. Stack: Terraform, Ansible, Packer, AWS, GCP, Kubernetes.

IT Consultant for Cloud Infrastructure
Jan 2015 – Feb 2016
Miguel David d.o.o.

Independent consulting focused on cloud infrastructure, Linux administration, and web development for SMB clients.

Linux Systems Administrator L3
Jan 2014 – Jan 2015

Senior technical lead on the Infrastructure Cloud team. Escalation point for OpenStack issues across support tiers. Won Rackspace's "Fanatic" award, recognizing the top 5% of employees for customer impact.

Linux Systems Administrator L2
Aug 2012 – Dec 2013

Handled escalations for RHEL-based clustered environments. Mentored junior colleagues and improved internal troubleshooting processes across the EMEA region.

Linux Systems Administrator
Jan 2011 – Aug 2012

Provided phone and ticket support for SMB customers running RHEL-based LAMP environments, from single servers to load-balanced web clusters and Red Hat Clustered MySQL.

Systems Administrator and Data Manager
Apr 2009 – Aug 2010

Supported ESA's Grid Processing on Demand platform for Earth observation data. Built a MySQL-based data ingestion pipeline handling ~1 TB/week of satellite data and administered Linux servers, RAID arrays, and monitoring infrastructure.

IT Senior Engineer
Sep 2006 – Apr 2009

Led equipment integration and automation for two factory production areas, including SECS/GEM equipment control and chip laser marking. Deployed testing frameworks across sites in Italy, Malaysia, and China.

IT Engineer
Mar 2003 – Sep 2006

Implemented SECS/GEM semiconductor equipment control standards. Provided application support to production, quality, and planning departments.

Miguel David

Background

Education & Certifications

Engineering Degree - Faculdade de Engenharia da Universidade do Porto (1998-2003)
System Thinking - MIT xPRO (March 2025)
Certified Kubernetes Administrator (CKA) - Linux Foundation (Jan 2021)
AWS Certified Solutions Architect - Associate
AWS Certified SysOps Administrator - Associate

Entrepreneurial Ventures

Taste Porto - Co-founded a successful food tour company in Porto with my wife and best friend
Coworking Space - Co-founded and operated a coworking space in Split, Croatia for one year

Technical Expertise

Infrastructure & Automation: Ansible, Terraform, Packer, Vagrant
CI/CD: GitLab CI, Jenkins, Bitbucket Pipelines, GitHub, Buildkite
Databases: PostgreSQL, MySQL, MongoDB, Oracle
Operating Systems: Linux (Red Hat, CentOS, Ubuntu), macOS, Unix (Solaris)

International Experience

I've lived and worked in multiple countries: Portugal, Belgium, Denmark, Italy, United Kingdom, and Croatia.

Languages

Portuguese (Native)
English (Native/Bilingual)
French (B1)
Italian (Limited)

Cloud Architecture

Design and implement resilient, scalable systems on AWS and other cloud platforms.

Infrastructure as Code

Implement Ansible, Terraform, and Packer for reproducible, version-controlled deployments.

Legacy Modernization

Migrate on-premise applications to cloud environments with minimal disruption.

CI/CD & Automation

Build deployment pipelines, configuration management, and workflow automation.

Speakeasy Mac

Native macOS menu bar app for text-to-speech using AVSpeechSynthesizer. Built with Swift and Claude Code.

NBA Game Recommender

NBA most engaging game of the week. Find the best games to watch based on competitive metrics.

Render Status

CLI tool to check the status of deployments and cronjobs in Render. Monitor your Render services from the command line.

Talks

Leading an SRE Team - Lessons from year 1

Portuguese

Key learnings from my first year leading an SRE team, covering team building, incident management, and balancing reliability with velocity.

Context matters

English

A presentation at an internal Harvest event where employees share on topics of personal interest